I'm assuming this is just a bug with replays (I was on the other team so can't say 100% for sure).
If you look at the replay labeled in the client as "PBE1-33875200", at 22:41 something happened to Xed.. I'm not entirely certain what.. but after that point in time he had a shadow that appears to grant vision stuck near the middle of the bridge. It lasted the rest of the game.
Post your PBE bug reports here: something not functioning as intended? Store is broken? A champion's ability is not working? etc
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